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Stock Incentive Plans - Narrative (Details) - USD ($) shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Compensation expense |  |  | $ 77.0 | $ 64.0 |
Unrecognized compensation expense | $ 547.0 |  | $ 547.0 |  |
Weighted-average period for total unrecognized compensation expense for nonvested equity awards |  |  | 1 year 10 months 24 days |  |
Cruise Stock Incentive Awards | Stock options |  |  |  |  |
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Expiration period |  |  | 10 years |  |
Dividend yield |  |  | 0.00% | 0.00% |
Expected volatility rate |  |  | 57.30% | 55.00% |
Risk-free interest rate |  |  | 2.47% | 0.78% |
Expected option life |  |  | 6 years 6 months 25 days | 6 years 3 months |
Cruise Stock Incentive Awards | Stock options | Minimum |  |  |  |  |
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Service period |  |  | 4 years |  |
Cruise Stock Incentive Awards | Stock options | Maximum |  |  |  |  |
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Service period |  |  | 10 years |  |
Cruise Stock Incentive Awards | Restricted Stock Units (RSUs) |  |  |  |  |
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Numbers of awards that vested immediately | 31.0 |  |  |  |
Total units outstanding (in shares) | 92.0 |  | 92.0 |  | 66.2
Cruise Stock Incentive Awards | Restricted Stock Units (RSUs) | Forecast |  |  |  |  |
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Number of shares vested and expected to be settled |  | 31.0 |  |  |
Cruise Stock Incentive Awards | Restricted Stock Units (RSUs) | Maximum |  |  |  |  |
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Service period | 4 years |  |  |  |
Cruise Stock Incentive Awards | Stock options and RSUs |  |  |  |  |
Stock Incentive Plans Narratives [Abstract] |  |  |  |  |
Compensation expense |  |  | $ 1,200.0 |  |
Unrecognized compensation expense | $ 1,900.0 |  | $ 1,900.0 |  |
Weighted-average period for total unrecognized compensation expense for nonvested equity awards |  |  | 2 years |  |
Total units outstanding (in shares) | 119.0 |  | 119.0 |  |

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